نتایج جستجو برای: eg in abandoned lands
تعداد نتایج: 16978934 فیلتر نتایج به سال:
The isolated North Atlantic island of Bermuda, lying 1000 km ESE of Cape Hatteras, North Carolina, USA, has received scant attention from bryologists since the last compilations of nearly a century ago (EG Britton, 1918; Evans, 1918), plus a few additions (Andrews, 1923; Dixon, 1936). Of the mosses listed by EG Britton (1918), those that are not widespread in both Europe and North America are o...
We consider whether current notions about superstring theory below the Planck scale are compatible with cosmology. We find that the anticipated form for the dilaton interaction creates a serious roadblock for inflation and makes it unlikely that the universe ever reaches a state with zero cosmological constant and time-independent gravitational constant. Superstring theories have been extensive...
This study was conducted to evaluate the effect of subcutaneous administration of synthetic eugenol (EG) for disbudding of goat kids, as a new chemical method. Thirty apparently healthy Raieni (Cashmere) goat kids (five-day-old) were divided randomly into six groups (n = 5). In the pathology (P) groups (P3, P8 and P60 according to the sample collection day after...
Møller and co-workers (Møller et al. 2007) observe an ‘elevated frequency of abnormalities in barn swallows (Hirundo rustica) at Chernobyl’ and ‘can think of no alternative explanations other than exposure to radiation that can have caused the observed patterns’. However, an obvious alternative hypothesis (e.g. Pikulik & Plenin 1994) is that apparent impacts on birds may be due to ecosystem cha...
We report the discovery of a partial ∼ 2 diameter non-thermal radio shell coincident with Taz, the pulsar wind nebula (PWN) in the error box of the apparently variable γ-ray source 3EG J1809−2328. We propose that this radio shell is a newly identified supernova remnant (SNR G7.5−1.7) associated with the PWN. The SNR surrounds an amorphous region of thermal X-rays detected in archival ROSAT and ...
Soil erosion and sediment yield from watersheds confine sustainable use of land resources and is supposed as one of the most critical environmental issues. Prediction of storm wise soil erosion and sediment yield is very important, especially in arid and semiarid regions due to small number of events and high intensity of rainfall. Evaluation of soil erosion by existing models is needed as an i...
Soil erosion is a global challenge, seriously threatening soil and water resources andenvironmental qualities. One of the important factors to consider in the process of runoffgeneration and soil erosion is the physical and chemical properties of soils under differentland-uses. The aim of this study is to estimate soil erosion and runoff in rangeland, rain-fedand abandoned rain-fed agriculture ...
Background & Aim: Punica granatum L. (pomegranate) is a widely used plant that has high nutritional value .This study evaluated prevention effect of hydro alcoholic extract of Punica granatum flower and leaves ethylene glycol-induced Nephrolithiasis in Wistar rats. Experimental: 20 male Wistar rats were randomly divided into 4 equal groups. G...
Ecological restoration of abandoned, formerly forested farmland can improve the delivery of ecosystem services and benefit biodiversity conservation. Restoration programs can involve removing isolated, non-native trees planted by farmers for fruit or wood. As such “legacy” trees can attract seed dispersers and create microclimates that help native seedlings to establish, removing them may actua...
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